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Vulnerabilities CVE-2025-34260

CVE-2025-34260

Medium
Open
TLP:CLEAR

Advantech WISE-DeviceOn Server < 5.4 Authenticated Stored XSS via action/schedule

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Description

Advantech WISE-DeviceOn Server versions prior to 5.4 contain a stored cross-site scripting (XSS) vulnerability in the /rmm/v1/action/schedule endpoint. When an authenticated user adds a schedule to an existing task, the schedule name is stored and later rendered in schedule listings without HTML sanitation. An attacker can inject malicious script into the schedule name, which is then executed in the browser context of users who view or interact with the affected schedule, potentially enabling session compromise and unauthorized actions as the victim.

Details

CVSS Score
5.1
EPSS Score
0.25%

16.2th percentile

CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
Confidence
90%
Published
Dec 5, 2025
Last Modified
Aug 14, 2026
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